[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Fix MOVS instruction emulation for HVM MMIO.
# HG changeset patch # User kaf24@xxxxxxxxxxxxxxxxxxxx # Node ID 7fdc4a8b782b1e17fc473d418236ab44cc31b35f # Parent aab3cd33d2ba65340d355ffbfc859ef6e7b64df3 Fix MOVS instruction emulation for HVM MMIO. From: Gerd Hoffman Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx> --- xen/arch/x86/hvm/platform.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff -r aab3cd33d2ba -r 7fdc4a8b782b xen/arch/x86/hvm/platform.c --- a/xen/arch/x86/hvm/platform.c Tue May 16 16:34:27 2006 +0100 +++ b/xen/arch/x86/hvm/platform.c Tue May 16 19:50:23 2006 +0100 @@ -865,7 +865,7 @@ void handle_mmio(unsigned long va, unsig * copy ourself. After this copy succeeds, "rep movs" is executed * again. */ - if ((addr & PAGE_MASK) != ((addr + size - 1) & PAGE_MASK)) { + if ((addr & PAGE_MASK) != ((addr + sign * (size - 1)) & PAGE_MASK)) { unsigned long value = 0; mmio_opp->flags |= OVERLAP; @@ -876,7 +876,7 @@ void handle_mmio(unsigned long va, unsig hvm_copy(&value, addr, size, HVM_COPY_IN); send_mmio_req(IOREQ_TYPE_COPY, gpa, 1, size, value, dir, 0); } else { - if ((addr & PAGE_MASK) != ((addr + count * size - 1) & PAGE_MASK)) { + if ((addr & PAGE_MASK) != ((addr + sign * (count * size - 1)) & PAGE_MASK)) { regs->eip -= inst_len; /* do not advance %eip */ if (sign > 0) _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |